"On Monday, February 19, a school administrator reported to a school resource officer that students had come forward about the 17-year-old male student allegedly having a list of students he planned to kill," said a statement from Lafourche Parish Sheriff Craig Webre's office. "Investigators also learned he had made direct threats to the lives of students at the school."

Authorities say their investigation identified another 17-year-old male student as an accomplice.

"Detectives made contact with the second student on Tuesday morning and questioned him," the sheriff's office said. "He admitted to knowing about the other student’s plan and agreeing to assist him."